Skin, mucous membranes, serous membranes, spleen, immune system, lymphatic system. The central theme of the last volume is what holds body and mind together in both a physical and metaphorical sense. It thoroughly addresses the fact that there are various instances of immune defense, that an anaerobic-archaic and an aerobic-intelligent immune system exist, and that the healing of chronic diseases is only relapse-free when the skin is able to regain its physiological immune defense through sweating and fever. The conflicts of the various membranes, the lymphatic system, and the spleen show interesting similarities. Solutions from homeopathy, naturopathy, and mental work with patients convey the holistic treatment concept. Finally, a retrospective examines the 12 organ systems as a whole, which are influenced by a consciousness.